单列建筑群静力干扰效应的数值模拟  

NUMERICAL SIMULATION OF STATIC INTERFERENCE EFFECTS FOR SINGLE BUILDINGS GROUP

作　　者：张春晖[1] 彭兴黔[1] 乔常贵[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《力学与实践》2010年第3期71-76,共6页Mechanics in Engineering

基　　金：国家自然科学基金项目(50708040);厦门市科技计划高校创新项目(3502Z20083039);泉州市科技计划重点项目(2007G7)资助

摘　　要：采用CFD数值模拟技术,对处于C类地貌风场中由3栋建筑形成的单列建筑群进行静力风荷载和风场的数值模拟.数值模拟采用良好适应性的非结构化四面体单元进行网格划分,侧重模拟分析了各风向角下建筑间距的改变引起面平均风压系数的改变,由此得到了此类群体建筑表面风压系数干扰因子在各风向角下随建筑间距变化的分布规律和特征.In wind field of category C ground feature,numerical simulation of static wind load and wind field were performed for single buildings group composed of three buildings by CFD.Tetrahedron discrete grid with good adaptability has be adopted in this paper.The wind pressure coefficient in various spacings at any wind angle are simulated and analyzed.Distribution laws and characteristics of wind pressure coefficient interference factor on this kind of building surface following the change of spacing at any wind angle have been obtained.The result of numerical simulation could provide basis for building groups distribution optimization and wind-resistant design of structures.

关 键 词：单列建筑群 数值模拟 干扰因子 风压系数 

分 类 号：TU973.213[建筑科学—结构工程]